This riveting tale finds our Spanish detecive in Buenos Aires, where he is helping an uncle find his son who has disappeared. Set against the backdrop of Argentina's repressive military junta (the book was originally published in 1977), Montalban comments on not just wine, women and song but also much of Argentina's political and cultural history. The Pepe Carvalho crime series, which spans 20 years and 22 books, earned Montalban the Raymond Chandler Prize and the French Grand Prix for Detective Fiction.  (ARG48, $14.00)